Nancy Kassak Diekmann

Former Titles: 1) Director of Finance
2) Managing Director 3) Executive Director
Companies: 1) Manhattan Country School
2) New York Theatre Workshop 3) Jonathan Larson Performing Arts Foundation
Location:  Hoboken, New Jersey, United States


  • Association of Non-Profit Theatre Companies, New York Chapter (President)
  • Clark University, Alumni Interviewer
  • National Endowment for the Arts (planning and stabilization panel)
  • New York State Association of Independent Schools (board member and treasurer, business affairs council)
  • New York State Council on the Arts (chairman, theatre panel)
  • Stevens Cooperative School, Hoboken, NJ (board chairman)
  • Trevor Day School Parents Association (parent representative, treasurer)


  • Honoree, Distinguished Worldwide Humanitarian Award (2021)
  • Inductee, Top Professionals of the Year, Marquis Who’s Who (2021)
  • Recipient, Albert Nelson Marquis Lifetime Achievement Award (2020)
  • Featured Listee, “Who’s Who of American Women, Marquis Who’s Who (1993-2000)
  • Featured Listee, “Who’s Who in the East,” Marquis Who’s Who (1995-1996)
  • Production of the Tony, Obie and Pulitzer Prize Winning Musical “Rent,” New York Theatre Workshop (1996)
  • Featured Listee, “Who’s Who in America,” Marquis Who’s Who (1995)
  • Featured Listee, “Who’s Who in Entertainment, Marquis Who’s Who (1992-1993)
  • Recipient, Obie Award, excellence in Off-Broadway theatre, The Village Voice (1991)
  • Contributor, “Sliding-Scale Tuition: A Commitment to Equal Access,” Parents League Magazine

Contact Nancy Diekmann

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